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<html lang="en">

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    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <script src="https://cdn.bootcdn.net/ajax/libs/echarts/4.8.0/echarts.min.js"></script>
    <title>Document</title>
</head>

<body>
    <div id="main" style="width: 600px;height:400px;"></div>
    <script>
        var myChart = echarts.init(document.getElementById('main'));
      var option = {
            tooltip: {
                trigger: 'item'
            },
            legend: {
                top: '5%',
                left: 'center'
            },
            series: [
                {
                    name: '访问来源',
                    type: 'pie',
                    radius: ['40%', '70%'],
                    avoidLabelOverlap: false,
                    label: {
                        show: false,
                        position: 'center'
                    },
                    emphasis: {
                        label: {
                            show: true,
                            fontSize: '40',
                            fontWeight: 'bold'
                        }
                    },
                    labelLine: {
                        show: false
                    },
                    data: [
                        { value: 1048, name: '搜索引擎' },
                        { value: 735, name: '直接访问' },
                        { value: 580, name: '邮件营销' },
                        { value: 484, name: '联盟广告' },
                        { value: 300, name: '视频广告' }
                    ]
                }
            ]
        };
        myChart.setOption(option);
    </script>
</body>

</html>